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    FUEL SUPPLY DEVICE
    1.
    发明申请
    FUEL SUPPLY DEVICE 有权

    公开(公告)号：US20250163870A1

    公开(公告)日：2025-05-22

    申请号：US18906183

    申请日：2024-10-04

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuki SUZUKI ,  Tomihisa TSUCHIYA

    IPC: F02M21/02 ,  F02D19/02 ,  F02M67/12

    Abstract: A fuel supply device includes a fuel tank, a delivery pipe in which gas fuel to be supplied to a fuel injection valve is stored, a supply passage through which the fuel gas supplied from the fuel tank to the delivery pipe flows, a shut-off valve provided in the supply passage, an oil supply device that supplies oil to a downstream portion of the supply passage, and a controller. The controller executes an oil supply process during operation of the internal combustion engine to close the shut-off valve to stop the supply of the gas fuel to the delivery pipe, and supply the oil to the downstream portion by the oil supply device when the pressure in the delivery pipe has dropped.

    FUEL SUPPLY DEVICE
    2.
    发明公开
    FUEL SUPPLY DEVICE 审中-公开

    公开(公告)号：US20240200514A1

    公开(公告)日：2024-06-20

    申请号：US18515256

    申请日：2023-11-21

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Mina TACHIBANA ,  Tomihisa TSUCHIYA ,  Yuki SUZUKI

    IPC: F02M21/02

    CPC classification number: F02M21/0239 ,  F02M21/0242 ,  F02M21/0248

    Abstract: A fuel supply device includes a fuel injection valve, a delivery pipe, a relief passage, a first valve, and a second valve. The fuel injection valve injects gas fuel. The delivery pipe supplies the gas fuel to the fuel injection valve. The relief passage connects an intake passage of an internal combustion engine and the delivery pipe. The first valve is configured to supply the gas fuel in the delivery pipe to the relief passage. The second valve is arranged in the relief passage. The second valve opens when a downstream pressure becomes lower than an upstream pressure by an amount that is greater than or equal to a specified pressure determined in advance.

    FUEL INJECTION CONTROL DEVICE
    3.
    发明公开
    FUEL INJECTION CONTROL DEVICE 审中-公开

    公开(公告)号：US20240200506A1

    公开(公告)日：2024-06-20

    申请号：US18537820

    申请日：2023-12-13

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuki SUZUKI ,  Tomihisa TSUCHIYA

    IPC: F02D41/40

    CPC classification number: F02D41/401 ,  F02D2200/021

    Abstract: A fuel injection control device is configured to control fuel injection of an injector attached to a cylinder head of an internal combustion engine and coupled to a delivery pipe. The fuel injection control device includes processing circuitry configured to execute an injection duration calculation process of calculating an injection duration of the injector required for injection of a requested amount of fuel. The injection duration calculation process includes calculating the injection duration such that the injection duration is longer when a temperature difference between the cylinder head and the delivery pipe is a first value than when the temperature difference is a second value smaller than the first value.

    GASEOUS FUEL SUPPLY DEVICE
    6.
    发明公开
    GASEOUS FUEL SUPPLY DEVICE 审中-公开

    公开(公告)号：US20240247617A1

    公开(公告)日：2024-07-25

    申请号：US18539286

    申请日：2023-12-14

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Mina TACHIBANA ,  Yuki SUZUKI ,  Tomihisa TSUCHIYA

    IPC: F02D41/00

    CPC classification number: F02D41/0027 ,  F02D2200/0602

    Abstract: A gaseous fuel supply device includes processing circuitry configured to control a direct injection valve and a shut-off valve. The processing circuitry determines an energization time for the direct injection valve based on a pressure of gaseous fuel supplied from a supply passage to the direct injection valve. When a temperature of the direct injection valve becomes greater than a temperature determination value, the processing circuitry starts an opening-closing process that repeatedly switches the shut-off valve between a closed state and an open state. The opening-closing process is a process that brings the shut-off valve into the closed state when the pressure of the gaseous fuel supplied to the direct injection valve is greater than a pressure lower limit value and brings the shut- off valve into the open state when the pressure of the gaseous fuel becomes less than or equal to the pressure lower limit value.

    INTERNAL COMBUSTION ENGINE
    7.
    发明公开
    INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20240003313A1

    公开(公告)日：2024-01-04

    申请号：US18341323

    申请日：2023-06-26

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuki SUZUKI ,  Tomihisa TSUCHIYA

    IPC: F02F1/42

    CPC classification number: F02F1/4235 ,  F02F1/4214 ,  F02F2001/245

    Abstract: A guiding portion of an intake valve head includes a specific tangent line, which, when the intake valve is in a fully open state, intersects with at least one selected from an ignition plug and a closed exhaust valve. A line segment that agrees with a tangent line contacting the guiding portion and extends from a contact point of the tangent line with the guiding portion to an intersection point of the tangent line with a central axis of the head is defined as a first line segment, a line segment that agrees with the central axis and extends from the intersection point toward the intake passage is defined as a second line segment, and an angle formed by the first second line segments is defined as a specific angle. The tangent line that minimizes the specific angle is the specific tangent line.

    HEAT INSULATOR
    8.
    发明申请
    HEAT INSULATOR 有权
    热绝缘子

    公开(公告)号：US20160258336A1

    公开(公告)日：2016-09-08

    申请号：US15058797

    申请日：2016-03-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

    Inventor： Tomihisa TSUCHIYA ,  Hiroshi Shimogasa ,  Shoichi Maeda

    IPC: F01N13/14

    CPC classification number: F01N13/14 ,  F01N13/102 ,  F01N13/143 ,  F01N13/1888 ,  F01N2260/10 ,  F01N2310/02 ,  F01N2470/24

    Abstract: A heat insulator includes a first covering part and a second covering part. The first covering part is configured to cover a bent part formed in an exhaust pipe of an internal combustion engine. The first covering part has a plurality of slits extending in a circumferential direction of the exhaust pipe. The plurality of slits are arranged with a given space from each other in a direction in which the exhaust pipe extends such that a plate part between slits is present between the plurality of slits. The second covering part covers the other part of the exhaust pipe than the bent part. At least a part of the second covering part is bonded to the exhaust pipe.

    Abstract translation: 绝热体包括第一覆盖部分和第二覆盖部分。 第一覆盖部被构造成覆盖形成在内燃机的排气管中的弯曲部。 第一覆盖部具有在排气管的周向延伸的多个狭缝。 多个狭缝在排气管延伸的方向上以给定的空间彼此排列，使得狭缝之间的板部分存在于多个狭缝之间。 第二覆盖部分覆盖排气管的另一部分而不是弯曲部分。 第二覆盖部的至少一部分被结合到排气管。

    CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
    10.
    发明公开
    CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20240110534A1

    公开(公告)日：2024-04-04

    申请号：US18454944

    申请日：2023-08-24

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuki SUZUKI ,  Tomihisa TSUCHIYA ,  Jun MIYAGAWA

    IPC: F02D41/38 ,  F02D41/00

    CPC classification number: F02D41/38 ,  F02D41/0027 ,  F02D2041/389

    Abstract: A controller is used for an internal combustion engine including a cylinder and a direct injection valve that injects gaseous fuel into the cylinder. A CPU of the controller executes acquisition of an in-cylinder pressure that is a pressure in the cylinder during one combustion cycle and a supply fuel pressure that is a pressure of the gaseous fuel supplied to the direct injection valve, and calculation of a backflow rate that is an amount of combustion gas flowing into the direct injection valve from the cylinder during one combustion cycle of the cylinder. In the calculation of the backflow rate, the CPU calculates the backflow rate such that the backflow rate becomes larger as the in-cylinder pressure increases and the backflow rate becomes larger as the supply fuel pressure decreases.

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